Geometry Semester A Exam Review

Front

What is a perpendicular bisector of a line segment?

Back

A line that divides a line segment into two equal parts at a 90-degree angle.

Front

What is the definition of an angle bisector?

Back

A ray that divides an angle into two equal angles.

Front

How do you find the coordinates of a point reflected across the x-axis?

Back

Change the sign of the y-coordinate of the point.

Front

What is the sum of the interior angles of a triangle?

Back

180 degrees.

Front

What is the formula for the area of a triangle?

Back

Area = 1/2 * base * height.

Front

What is the Pythagorean theorem?

Back

In a right triangle, a² + b² = c², where c is the hypotenuse.

Front

What is the definition of complementary angles?

Back

Two angles that add up to 90 degrees.

Front

What is the definition of supplementary angles?

Back

Two angles that add up to 180 degrees.

Front

What is the formula for the perimeter of a rectangle?

Back

Perimeter = 2 * (length + width).

Front

What is the definition of a scalene triangle?

Back

A triangle with all sides of different lengths.